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uysha [10]
3 years ago
9

Secondary succession occurs in ecosystems without soil. Is it true of false?

Biology
2 answers:
MaRussiya [10]3 years ago
7 0
False. <span>Secondary  succession mainly occurs after an event, and it takes place on the same soil .</span>
Nata [24]3 years ago
5 0

Answer:

False

Explanation:

Succession is the series of gradual changes that occur in an ecological community over a particular period of time. Ecological succession is of two types;

1) Primary succession, in which a newly exposed or newly formed rock surface is colonized by living organisms for the very first time. The surface is barrren before colonization and there is absence of soil at the starting of the process.

2) Secondary succession, where a previously occupied area becomes recolonised by other living organism. The recolonization is usually due to environmental disturbances e.g. deforestation, flood, earthquake etc. that must have wiped out the previously existing species. In this case, SOIL is already present which makes it easier for recolonization to occur.

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From the following, choose the factors that may produce or increase the risk of mutations.
mel-nik [20]

Answer:

High Temperature, X-rays, Radiation, Some Chemicals

Explanation:

In general, mutations happen due to some error in the DNA duplication process, however, there are certain factors in the environment that can increase the incidence rate of these genetic errors. Excessive exposure to x-rays, substances present in smoke, ultraviolet light, excessive temperature, nitrous acid and some dyes present in food, for example, can favor the appearance of mutations. In general, we can say that mutations can be caused by high temperature, X-rays, radiation, some chemicals.

8 0
3 years ago
Menciona las cuatro fases de la mitosis​
Zolol [24]

Answer:

profase, metafase, anafase y telofase :)

Explanation:

( translation: prophase, metaphase, anaphase,and telophase)

3 0
2 years ago
Which of the following is the average height of the ocean’s surface between high and low tides?
Oxana [17]
The average height of the oceans surface between high and low tides is called the sea level. It is important to know this measurement because with this it is possible that we can calculate the height of anything on the land. Also, we can <span> calculate the height of anything on the land. Also, we can be able to determine whether the oceans are falling or rising through time. 

So the answer is </span><span>Sea level </span>
4 0
3 years ago
Read 2 more answers
Which organelles can be found in both plant and animal cells? A)cell membrane, nucleus, and chloroplasts B)cell wall, cell membr
Naddika [18.5K]

Answer:

Structurally, plant and animal cells are very similar because they are both eukaryotic cells. They both contain membrane-bound organelles such as the nucleus, mitochondria, endoplasmic reticulum, Golgi apparatus, lysosomes, and peroxisomes. Both also contain similar membranes, cytosol, and cytoskeletal element.

5 0
2 years ago
The speed of light in a vacuum is approximately 299,500,000 meters per second. In scientific notation, we can write this number
Nonamiya [84]
In scientific notation, the value of the speed of light in a vacuum
 will be written as 2.995 * 10^8. When this value is represented in the form of
 a * 10^b, then, a = 2.995 and b = 8.
The value of the speed of light in a vacuum given above can also be rounded up to approximately 300000000. In this case, the scientific notation will be written as 3 *10^8.
6 0
3 years ago
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